On the operational level, jigs and fixtures are fundamental elements of assembly systems. Modular assembly systems are a category of changeable manufacturing systems, which can handle the rapid change in customer demands, product design change and market fluctuations. Finally, based on the analysis results, the position angle of the vacuum fixture–workpiece system was optimized to reduce the clamping deformation caused by the differences between the surface profiles. A detailed comparison between the predictions and experimental results verified the accuracy of the proposed analytical method. Furthermore, the relationship between the clamping deformation, as well as the structural parameters of the flat parts and the vacuum fixture, was evaluated. In this study, a comprehensive finite element analysis (FEA) model considering the surface profile error between the vacuum fixture and the low-rigidity flat parts was established to predict the clamping deformation under various clamping pressures in the vacuum fixture–workpiece system. Moreover, the effects of different structural parameters of the workpiece and the vacuum fixture on the clamping deformation have not been thoroughly investigated. This results in a low processing accuracy of low-rigidity workpieces. However, the influence of any errors resulting from the differences between the surface profiles of the fixture and the workpiece on the clamping deformation is always neglected.

In ultra-precision manufacturing, the prediction of workpiece deformation induced by loading of the fixture–workpiece system is critical for manufacturing workpieces with high-quality surfaces.

Software for m90 micro oplc